Ventilator.



R. S. GUDDIHY.

VENTILATOR.'

v APPLIOATIoN HLBD 00126. 190s.

Patented Apr. 20, 1909.

fil)

UNITED sTATns @PATENT cistron.

RICHARD S. CUDDIHY, Ol'w ST. PAUL, MINNESOTA, ASSIGNOR OF ONE-HALF TO JULIUS J. LA KE, OF ST. PAUL, MINNESOTA.

VENTILATOR.

Application vfiled October 26, 1908.

To all whom it may concern.'

Be it known that I, Itioininn S. (Tunninr, ofSt. Paul, Itainsey county, Minnesota, have rnvented certa-1n new and usernl Improve ments in ventilators, of which the following isa specification.

for creating a suction therein to the end that foul or impure air will be drawn from the space that it is desired to ventilate.

My invention is applicable particularly to railway coaches and street cars, but is also capable of use in connection with buildings of various lrinds, closed carriages and automobiles of the limousine type.

My invention consists generally in various constructions and combinations, all as hereinafter' described and particularly pointed out in the claims.

In the accompanying drawings forming part of this specification, Figure l, is a sectional view illustrating the application of my invention to the deck of a car, Fig. 2, is a sectional view on the line X-X of Fig. I, Fig. 3, illustrates the application of the invention to the ventilating pipe of a car toilet room, Fig. 4, is a view partially in section illustrating the manner of mounting the ventilator on the toilet room pipe. l

In the drawing, 2 represents the portion of a car deck having a Ventilating opening 3 and a discharge pipe 4. This pipe is curved uph wardly and downwardly and provided with a discharge end or section 5 through which the impure air escapes. For the purpose of creating a suction at the open or discharge end of this pipe, I provide a sleeve 6 inclosing said pipe and spaced therefrom and having a head 7 at one end which prevents the es cape of the air in that direction. The opposite end of the sleeve is open and projects preferably beyond the onen end of the pipe section 5. Partition wL ls 8 are interposed between the pipe 5 and the sleeve 6 and separate the space on one side of the pipe 5 from the corresponding space on the opposite side. The sleeve 6 has openings 9 therein and cones or tunnels IO fitting thereon. These cones serve to direct the air into the space between the pipe 5 and the sleeve 6, one cone being utilized when the car is moving in one direction, and the other cone when the car is moving in the opposite direction. The air accumulating in the space between the pipe Specification .of Letters Patent.

Patented April 20, 1909.

Serial No. 459,451.

and the sleeve can escape only through the open end of the sleeve and past the open of the pipe 5. The rush of air past the pi pe 5 will create a suction therein and cause the impure air of the car to be drawn out through the opening 8 and discharged into the atmos- The ob]ect of my nivention, vis to provide means in connection with Ventilating pipe phere.

In Fig. 3, the ventilator is shown mounted on a pipe Il which extends from the toilet room ofthe car up through the roof 12. The operation of the device is substantially the same as described with reference to Figs. 'I and 2. This device may be applied to the roof of a street car or the wall or roof of a building for the purpose of inducing an outward draft through the Ventilating pipe. If desired, it may also be applied. to a closed carriage or a limousine type of automobile.

As indicated in the drawing', the discharge end of the ventilator pipe is turned or directed downwardly so that dirt or cinders collecting in the ventilator will be directed downward upon the roof of the car instead of being held in the pipe and. allowed to work backward into the car through the ventilat ing opening. I regard this arrangement of the discharge end of the ventilator pipe as important feature of the invention as it positively prevents eind ers and dirt from collecting in the pipe and entering the car.

An important feature of this invention is the downwardly turned pipe section, forming a continuation of the elbow. his pipe section and the sleeve inclosing it are near the car roof and their open ends are so far below the elbow and passage into the car, that it will be impossible for side drafts of air, when the car is stationary, to blow the dust and cinders into the car through the ventilator. This ordinarily is a serious objection to ventilators as usually constructed. My long, downwardly-turned pipe section avoids all this difficulty, as it directs the cinders and dust down upon the car roof and its open end is so far from the elbow leading to the ventilator opening, that the car is always free from dust and cinders, even though a strong, side wind may be blowing.

I claim as my invention z- 1. The combination, witha car roof, of a pipe mounted therein and projecting upwardly therefrom and provided with an elbow at its upper end, said elbow terminating in a downwardly extending pipe section having an open lower end, a sleeve inclosinn' said downwardly extendingr section and si, red from the walls thereof, the upper end of said sleeve being closed and its lower end being` open, partitions provided in said sleeve between its walls and the walls of seid pipe section, and funnels provided in the wall of said sleeve in each side thereof and located between said elbow and the open lower end of said pipe section and comrnunicatingy respectively with the chambers on opposite sides of said partitions and said funnels causing currents of air to be established past the open end of said inclosed pipe section to create a suction therein, and the downwardly inclined ends of said section and sleeve, and the location of said funnels therein preventing the entrance of dirt and cinders into the car.

2. The combination, with a car roof, of a ventilatingr pipe mounted therein and projecting upwardly therefrom and having an elbow at its upper end terminating in a downwardly extending section, a sleeve inclosing said section and spaced therefrom and having a closed upper end and partitions connecting said sleeve with said section and dividing the space between them, a funnel mounted in the wall of said sleeve and communicating;l with the space between it and said pipe section, and said pipe section and seid sleeve having open lower ends that are located a considerable distance below said elbow and said funnel being` arranged between said elbow and the open lower end of said pipe, whereby the passage of dirt and cinders from side drafts of air, while the car is stationary, will be prevented.

ln Witness whereof, I have hereunto set my hand this 22d day of October 1908.

RICHARD S. CUDDIHY.

vWitnesses RICHARD PAUL, Wl. E. DREssLER. 

